Mazda CX-9 Grand Touring 2009 Manual page 919

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
connectors reconnected.
Turn the ignition switch to the
ON position (Engine off).
Clear the DTC from the PCM
10
memory using the M-MDS.
Start engine and warm it up
completely.
Is same DTC present?
VERIFY AFTER REPAIR
PROCEDURE
Perform "AFTER REPAIR
PROCEDURE".
11
(See AFTER REPAIR
PROCEDURE [MZI-3.7].)
Are any DTC present?
DTC P0103 [MZI-3.7]
DTC P0103 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P0103 MAF circuit high input
DETECTION
CONDITION
POSSIBLE
CAUSE
2008 Mazda CX-9 Grand Touring
No
Go to the applicable DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No
The MAF sensor circuit is monitored by the PCM for high air flow (or voltage) input
through the CCM. If during KOEO, or KOER, the air flow (or voltage) changes
above a maximum calibrated limit, the test fails.
Short to power supply in wiring harness between MAF sensor terminal D and PCM
terminal 1AN
MAF sensor malfunction
Connector or terminal malfunction
Go to the next step.
Troubleshooting completed.